SpasmMuscle SpasticityMusclesNeck MusclesSpasms, InfantileCervical AtlasOccipital BoneNeuromuscular AgentsMuscle ProteinsMuscle, SmoothMuscle, SkeletalSpinal Cord InjuriesMuscle, Smooth, VascularMuscle Fibers, SkeletalHemifacial SpasmMotor NeuronsBotulinum Toxins, Type AElectromyographyMuscle ContractionMuscle DevelopmentSciatic NerveMuscle FatigueMuscle Fibers, Fast-TwitchCoronary VasospasmMuscle DenervationMuscle Fibers, Slow-TwitchFacial MusclesMyocytes, Smooth MuscleMitochondria, MuscleOculomotor MusclesPeripheral NervesEsophageal Spasm, DiffuseMuscle RelaxationMuscle SpindlesMuscle, StriatedNerve FibersMuscle WeaknessRespiratory MusclesOptic NervePapillary MusclesBipolar DisorderAbdominal MusclesQuadriceps MuscleMasticatory MusclesMuscle CellsNerve RegenerationMasseter MuscleFacial NerveElectric StimulationIntercostal MusclesErgonovineMuscular AtrophyMental DisordersIsometric ContractionNerve EndingsAnxiety DisordersSatellite Cells, Skeletal MuscleMood DisordersNerve BlockMuscular DiseasesTibial NerveAngina Pectoris, VariantSural NervePectoralis MusclesMedian NerveNerve CrushUlnar NervePeripheral Nerve InjuriesTemporal MuscleHindlimbRabbitsTime FactorsCells, CulturedPsoas MusclesRats, Sprague-DawleyFemoral NerveCalciumMyofibrilsNerve Compression SyndromesNeuromuscular JunctionSpinal NervesDiagnostic and Statistical Manual of Mental DisordersPharyngeal MusclesTrigeminal NerveDiaphragmPhrenic NerveSpinal Nerve RootsMyosin Heavy ChainsFacial Nerve DiseasesRadial NerveBiomechanical PhenomenaRats, WistarRNA, MessengerNerve Growth FactorsNeural ConductionNerve Growth Factor